On the 1 person corner unit, how long is the bench? How far from the walls must the sauna be placed? Must it sit on a fire resistant surface?

Hello Sally and thank you for your questions. The sauna is 36? wide, so the bench would be about 33? wide (subtracting about 1.5? for each wall). You can place the sauna right against a wall. The outside temperature is barely warm. It does not need to sit on any type of fire resistant surface.